Hi Robi13. To measure such a small difference of 1/4 gauge between the 11 3/4 and 12, either measuring from the perforation hole center-center or perforation tip center-center would be preferable to check for a gauge. Lining up the gauge marks at the edge of the perforation tips as shown can be inaccurate for such a small gauge difference.
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Posted 05/12/2016 10:55 am
